CN103505940B

CN103505940B - Sepiolite powder filter core and preparation method thereof

Info

Publication number: CN103505940B
Application number: CN201310402094.0A
Authority: CN
Inventors: 张光亚
Original assignee: ANHUI GUODIAN ENERGY EQUIPMENT ENGINEERING Co Ltd
Current assignee: ANHUI GUODIAN ENERGY EQUIPMENT ENGINEERING Co Ltd
Priority date: 2013-09-06
Filing date: 2013-09-06
Publication date: 2015-03-04
Anticipated expiration: 2033-09-06
Also published as: CN103505940A

Abstract

The invention discloses a sepiolite powder filter core and a preparation method thereof. The sepiolite powder filter core is prepared from 22-24 weight parts of high density polyethylene, 14-16 weight parts of organic silicon resin, 9-12 weight parts of sepiolite powder, 14-16 weight parts of clay, 8-10 weight parts of kaolin, 3-4 weight parts of soybean oil, 5-7 weight parts of common salt, 2-3 weight parts of starch, 2-3 weight parts of a silane coupling agent KH550, 2-3 weight parts of alkylphenol polyoxyethylene ether, 3-5 weight parts of urea and 20-24 weight parts of modified attapulgite. The sepiolite powder filter core can be used for air filtration, oil product filtration or water filtration. The sepiolite powder filter core utilizes high density polyethylene and organic silicon resin as a skeleton and through partition sintering, filter core aperture uniformity is guaranteed and filtration effects are improved.

Description

A kind of sepiolite powder filter core and preparation method thereof

Technical field

The invention belongs to filtering material technical field, specifically a kind of sepiolite powder filter core and preparation method thereof.

Background technology

Filtering material purposes is very extensive, is widely used in the industry such as chemical industry, electric power, metallurgy, oil, electronic apparatus, machinery; Modal have air filter for automobile, for filtering the air entering engine, being stopped by the mechanical admixture compositions such as the particle in air, particulate, preventing these compositions from entering in gasoline, diesel oil or machine oil, ensure engine work.A large amount of filtering materials is also had to be used for air handling system, present ambient air pollutes very serious, high risks health, air filting material can by the various deleterious particle thing absorption of air, prevent the life or the working environment that enter people, reduce human lung to the suction of the harmful substances such as particle, improve the quality of life of people, reduce the generation of disease.Some is for water filtration and sewage disposal, for separating of the heavy metal in water or harmful components.Existing filtering material mainly contains ceramic honey comb, filter paper, steel wire etc.Existing honeycomb ceramic filter material feedstock joins function singleness, can not meet the requirement of technology development.

Summary of the invention

The object of this invention is to provide a kind of sepiolite powder filter core and preparation method thereof, the present invention have that purification efficiency is high, high temperature resistant, the pressure loss is little, the outstanding advantages such as micronic dust in corrosion-resistant, long service life, removing air.

The technical solution adopted in the present invention is:

A kind of sepiolite powder filter core, is characterized in that being made up of the raw material of following weight portion:

High density polyethylene (HDPE) 22-24, organic siliconresin 14-16, sepiolite powder 9-12, clay 14-16, kaolin 8-10, soybean oil 3-4, sodium chloride 5-7, starch 2-3, Silane coupling agent KH550 2-3, APES 2-3, urea 3-5, attapulgite modified 20-24.

Described attapulgite modifiedly to be obtained by following methods:

Calcine 3-4 hour at attapulgite being put into 460-480 DEG C, take out, cooling, puts into 10-12% sodium hydroxide solution and soaks 2-3 hour, takes out, and cleans with pure water, dries pulverize; Add the aluminium nitride, the dandelion powder of 18-20%, the sodium phosphate trimer of 3-4%, the medical stone powder of 2-3%, the graphite of 2-3%, the copper powder of 3-4% that are equivalent to attapulgite powder weight 35-40% again, mix and blend 30-40 minute, and then spray into the soybean oil being equivalent to attapulgite weight 3-5%, under 13000-16000 rev/min, stir 60-70 minute, to obtain final product.

The preparation method of described sepiolite powder filter core, is characterized in that comprising the following steps:

After each material is mixed at 100-110 DEG C, send in mould extruded, then, send in tunneled sintering kiln and sinter multidomain treat-ment: zone temperature and the time of continuous tunnel furnace are respectively: a district: 130-160 DEG C, 40-60 minute; 2nd district: 140-170 DEG C, time 1-2 hour; 3rd district: 150-180 DEG C, 80-100 minute; 4th district: 230-240 DEG C, time 30-40 minute; Then mould is taken out from continuous tunnel furnace, after cooling, the sodium bicarbonate aqueous solution putting into 4-5% soaks 2-3 days, after cleaning, takes out, dries.

The present invention may be used for air filtration or oil product and filters or water filtration, and the present invention for skeleton with high density polyethylene (HDPE) and organic siliconresin, through subregion sintering, can ensure that filter core mesopore is even, improve filter effect.

Detailed description of the invention

A kind of sepiolite powder filter core, be made up of the raw material of following weight portion (kilogram):

Described attapulgite modifiedly to be obtained by following methods:

Calcine 3-4 hour at attapulgite being put into 460-480 DEG C, take out, cooling, puts into 10-12% sodium hydroxide solution and soaks 2-3 hour, takes out, and cleans with pure water, dries pulverize; Add again be equivalent to attapulgite powder weight 40% aluminium nitride, 20% dandelion powder, the sodium phosphate trimer of 4%, medical stone powder, the graphite of 3%, the copper powder of 4% of 3%, mix and blend 30-40 minute, and then spray into the soybean oil being equivalent to attapulgite weight 5%, under 13000-16000 rev/min, stir 60-70 minute, to obtain final product.

The preparation method of sepiolite powder filter core, comprises the following steps:

Inventive samples important technological parameters is: heat shock resistance: 150 DEG C-20 DEG C air-cooled does not once split; Maximum operation (service) temperature 125 DEG C.The technical indicator of exhaust gas purification and treatment device is: trapping micronic dust efficiency >=99%; Outlet drain soot dust granule substrate concentration≤34mg/m3; The dust granules minimum grain size scope 1-10 μm caught.

Claims

1. a sepiolite powder filter core, is characterized in that being made up of the raw material of following weight portion:

High density polyethylene (HDPE) 22-24, organic siliconresin 14-16, sepiolite powder 9-12, clay 14-16, kaolin 8-10, soybean oil 3-4, sodium chloride 5-7, starch 2-3, Silane coupling agent KH550 2-3, APES 2-3, urea 3-5, attapulgite modified 20-24;

Described attapulgite modifiedly to be obtained by following methods:

Calcine 3-4 hour at attapulgite being put into 460-480 DEG C, take out, cooling, puts into 10-12% sodium hydroxide solution and soaks 2-3 hour, takes out, and cleans with pure water, dries pulverize; Add the aluminium nitride, the dandelion powder of 18-20%, the sodium phosphate trimer of 3-4%, the medical stone powder of 2-3%, the graphite of 2-3%, the copper powder of 3-4% that are equivalent to attapulgite powder weight 35-40% again, mix and blend 30-40 minute, and then spray into the soybean oil being equivalent to attapulgite weight 3-5%, under 13000-16000 rev/min, stir 60-70 minute, to obtain final product;

The preparation method of described sepiolite powder filter core, comprises the following steps: